Malicious PDF — malware analysis report

Static analysis result for SHA-256 7938b9003b3c4c10…

MALICIOUS

PDF

341.0 KB Created: 2022-05-09 09:40:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 082b2c63284b1f13f16d61a2988f9a86 SHA-1: a64e57c2f85206a7a0e771d05f1b69e7cc1d703d SHA-256: 7938b9003b3c4c1084d3e8e94e030b2a9062d291abd811aab56656c2d8ef7f4d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9427

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://wirut.co.za/YmrXLWy8?keyword=hamlet%20act%201%20scene%205%20ghost%20speech%20analysis%20summary%20worksheets%20free PDF link annotation
    • http://smartbazar.online/app/webroot/upload/files/dekamotoxikomuzod.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/vimaru/20220325/file/54436138216.pdfIn PDF document text
    • http://skupka23.ru/upload/m/xuwokufule.pdfIn PDF document text
    • http://kenshopvn.com/uploads/files/gufujukemokubivefupezufif.pdfIn PDF document text
    • https://pugonokeramu.weebly.com/uploads/1/3/4/6/134605959/1036908.pdfIn PDF document text
    • https://funstoreus.dialog.org/userfiles/file/vibudigojelomadoru.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/17946126892.pdfIn PDF document text
    • https://stabiactiv.com/userfiles/file/32836299450.pdfIn PDF document text
    • https://movimientofamiliadejesus.com/images/uploaded/file/konulojebuwudidifebam.pdfIn PDF document text
    • https://vkgnassociates.com/dayafter/uploadimages/newsimages/file/56504910918.pdfIn PDF document text
    • https://sz23222779.com/upload/users/files/49093824524.pdfIn PDF document text
    • http://live-net.it/file/biwokazorid.pdfIn PDF document text
    • https://bepxuyenviet.com/upload/files/gisajuvewuguxiwoneretu.pdfIn PDF document text
    • https://jnnjhansi.com/userfiles/file/vanudavoxaxajazetem.pdfIn PDF document text
    • https://etadelloro.it/images/file/93528345094.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/9he5hrr977kn6kr9c7bg2h9nj1/kujotibosu.pdfIn PDF document text
    • http://innovad-ltd.com/userfiles/file/81662402909.pdfIn PDF document text
    • http://thaimassageboy.com/ckfinder/userfiles/files/fisulem.pdfIn PDF document text
    • https://bozalugim.weebly.com/uploads/1/3/4/3/134343660/futedug.pdfIn PDF document text
    • http://www.cst.rnu.tn/js/ckfinder/userfiles/files/movovimevibegetetonek.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e0f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0F7 17304 bytes
SHA-256: d48fa77776b69b21fb4877cd2aec064ee81ba680de8b166e758e34a996182737
font_01_sfnt_off00050e23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E23 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0005263a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5263A 11496 bytes
SHA-256: a7e0c3ad2274d7f52fccfbb0842527423740ed1fb372a367d707d84800cce199

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